Modeling of inelastic neutron scattering and diffraction data shows a 2-k magnetic structure stabilizes short-period spin vortex crystals in GeNi2O4 and GeCo2O4, as an anisotropy-induced variant of predicted 3-k Bloch-point order.
Spin excitation spectra in helimagnetic states: Proper- screw, cycloid, vortex-crystal, and hedgehog lattices
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Vortex order in magnetic frustrated GeNi$_2$O$_4$ and GeCo$_2$O$_4$ spinels
Modeling of inelastic neutron scattering and diffraction data shows a 2-k magnetic structure stabilizes short-period spin vortex crystals in GeNi2O4 and GeCo2O4, as an anisotropy-induced variant of predicted 3-k Bloch-point order.